Stalk-cutting attachment for plows.



J. E. OSBORNE STALK CUTTING ATTACHMENT FOR PLOWS. iwmmolurmn FILED FEB. 21, 1912. I

1 47,979. Patenized Dec. 1912,

2 SHBETS'SEBET l ATTORNEY J. E. OSBORNE. STALK GUTTINGATTAGHMENT FOR FLOWS.

APPLICATION FILED FEB-21,1912.

1,047,979, ,fpgmntea .Dec. 24, 1912-.

2 S HEETS-SHEET 2.

q Q l/VVE/V TOR- JZJ/7/7 f. Osborne.

A TTORNEV Improvements in cutter attachment for plows which will be UNITED STATES JOHN E. OSBORNILEO.

13 BRANDON, TEXAS.

STALK-CUT'IING ATTACHMENT FOR PLOWS.

Specification of Application filed February 21,1312. Serial a... 679,107.

Letters Patent.

Patented Dec. 24, 1912.

To all whom it may concern:

Beit known that I, JOHN E. Osnonnn, citizen of the United States, residing at Brandon, in the county of Hill and State of Texas, have invented certain new anduseful Stalk-Cutting Attachments for PlowEs,-of which the following is a specification.

This invention relates to new and useful improvements in stalk-cutters, and particularly to that class. of stalk-cutters which em ploytfseries of blades or knives mounted on arms radiating from a central hub, vand adapted to rotate on an axle, due to the contacting of said blades with the ground.

An object ofthis inventionjis to provide a stalk-cutter attachment for an ordinary connection between said stalk-cutter and the beam of the plow to which itis attached.

Asfurther object of the invention is to provide a fender 'or stalk hook which employs the compression of a spring to hold it in position, but which will deflect from its 'normal positionwhen any unusual obstruction is encountered, and which will be returned to said normal position-by the spring;

The object is finally, to provide a stalkstrong, durable, comparatively easy to con struct, and onein whiohthe various parts.

are not likely to get out ofgworking order.

With these and various other objects in view, this invention has relation to certain novel features oftthe construction and op-' eration, an examplii'of which is described in the following specification, and illustrated in the accompanying drawings, wherein: 1

Figure 1 is a; side elevation of a plow with the stalk-cutter attached. .Figi 2 is an' end elevation of a-portion ofthe" plow beainwith the pivoted socket and the spring operated mechanism attached. Fig. 3' is a side view of thesame. Fig. fl: is a side elevation of the cutter and cutter shank: Fig. 5 is an I Y end elevation of'the same. Fig. 6 is a secemployed tohold the fork on to thecutter tion taken on the line A-'1 & o f'Fig. 2. Fig; 7 is a'top view of the special form of collar plow; 3, 4 and 5, the wheels of a common type of riding plow. An adjustable. lever 6 is also provided.

g On the beam 1, of the plow, some distance the two members 7, clamped to said'bealn by members 7 contain the apertures 9, said apertures forming bearings for a socket a socket 11 to receive a stalk-cutter shank 12, and the other end is adapted to receive the lever 13 held in place by the set-screw 14. Theupper end of the lever 13, isenlarged and provided with an aperture 15, adapted to receive one end of a bolt 16. In front of the combined clamp and bracket, just described, is mounted a second clamp and bracket composed of aclampand bracket member 17, a clamp piece 18 and the clamp bolts 19. The upper end of the bracket 17 is enlarged and provided with an aperture 20 adapted to receive the other end of the slight compression by the bolt 16. exerted on the spring 21 by the .lever 13 than that due to the normal compression of said. spring, the'lever'13'will move long 17, until said compression equals the pressure stalk-cutter shank '12 is adjustably carried by the socket' 11, and is held in position in said socket by thefset-screw 22. The lower 'endof-the shank 12 is reduced in diameter so as 'to'form a shoulder 23. The reduced 'portion bein' adapted to passthrough an aperturein tiecentral portion of the stalk .cutter fork' The fork 24 is pivotally held in position between the. shoulder '23 and a set collar 25 The set collar 25 is provided with twd stops 26, adapted to engage of'the fork-24. The lug 27 and the stops shank. Fig. is-a side View of the same. I

5 :"Referring to-the various figures wherein like reference characters designate like parts, the numeral 1 indicates the beam; 2, the. Q

in front of the plow point, is located a combined clamp and bracket cmfiposed of t is obvious that 1f a greater pressure he the bolts 8. The lower ends of the clamp shank 10. One end of the shank 10 forms bolt 1.6. On the bolt 16, between the lever 13 and the bracket 17, is interposed a com-' IJIQSSIOII spring 21, held normally under a the bolt 16 in the direction of the" racket exerted by the lever 13. The upper end of the a lug 27 cast integral wit-h the under side 26-limit the rotation f the f or, on the shank 12, to an arc of about degree The ends of the fork 24 carry suitable apertures to receive the ends of an axle 28. On the axle 28 is rotatably mounted the hub 29, from which radiate the arms 30. The arms 30 carry on their outer ends the knives 31, held in place by the shoulders 82 and the rivets In the central portion of the fork, and on its forward side are cast the adjustment controls the amount of com- A D i) pression of the spring 21, also the position of the cutter-wheel with reference to the point ofthe plow 2; The shank 12 is adapted to various adjustments in the socket 11, thus controlling the depth of cut of the knives 31 with reference to the plow 2. The

action of the above-described stalk-cutter shank and fork is similar to that of the ordinary caster coultcr, the method of connecting the fork of the cutter with the shank being the same in either case.

The operation of the stalk-cutter attachment serves to cut the stalks or other refuse,

which may be on the ground, into small pieces just ahead of the plow, and at the same time that .the plowing operation is going on. Also should an unusual obstruction be encountered by the blades of the cut ter, during said operation, they will exert sufficient pressure on the spring 21, transmitted through the fork 2 1, the shank 12, the socket 11, the shank 10, and the lever 13, to compress said spring 21, which allows the cutter to passover said obstruction. The

compression of the spring 21 returns the cutter to its normal position after it passes said-obstruction.

ilreupurpose of the stalk hook 36 is to aline any stalks that may be on the ground so that the kniveswill strike them Ctr-ansvcrselyp ,Thespring 39, together with the bracket gii, the bolt 38 and the 'ofi-set 37 on thestalk hook 36, is employed to maintain said stalk hook 36 normally in the p0sition shown. However, should an unusual obstruction beencountered, the hook will be displaced to the rear, thus compressing the springfii). After the hook points pass the obstruction, the compression of the springBf) will return'said stalk hook 36 to its normal position.-

It is tw eter-nu; various changes may be made in the forms and proportions, of the various parts of this invention without derotatablyattached to the forward portion of the cutter-fork, a spring-pressed means for maintaining s'aid stalk hook normally in an operative position, and a spring-pressed means for maintaining the cutter normally in an operative position.

2. In a stalk cutter attachment for plowsf the combination with a pivotally connected cutter shank and fork and an axle carried by the ends of said fork, of a central hub mounted on said axle and having radially disposed arms, radially projecting knives attached to said arms in such a way that their plane is parallel to and adjacent to the axis of said hub, a stalk hook rotatably attached to the forward portion of the cutter fork, a bracket on said fork acting together with an off-set on the stalk hook for utilizing the compression of a spring to maintain said stalk hook normally in an operative position, and spring pressed means for maintaining the cutter normally in an operative position.-

3. Ina stalk cutting attachment for plows, the combination with a pivotally connected cutter shank and fork and an axle carried by the ends of said fork, of a central hub mounted on said axle and having radially disposed arms, radially projecting knivesattached to said arms, having their cutting ed es parallel to the axis of said hub and a stal: hook rotatably attached to the forward portion of the'fork.

4. Ina stalk-cutter attachment'for plows the combination with a pivotally connected cutter shank and fork and an axle carried by the ends of said fork, of a central hub mounted on said axle and havin radially disposed arms, radially projecting ives attached to said arms, having their cutting edges parallel to the axis of said hub and a stalk hook rotatably attached to the forward portion of the fork, a cutter shank socket, said cutter shank socket being adapted to adjustably receive said cutter shank, a socket shank being rigidly secured to said cutter shank socket, a lever, said lever bein rigidly and substantially vertically fastened to said socket shank, two brackets, said brackets being clamped upon the plow beam and being adapted to at their lower portion form bearings for said socket shank, two bracket mcmberssaid bracket members being rigidly fastened to the plow-beam and being spaced f roin'the aforesaidtwo brackv In testimony whereof'l have signed my ets, one of said bracket membershaving an name-t0 this specification in the presence of spring, 'sa-ld coiled spring being mounted upon said rod and being interposedbetween- Y Witnesses:

upwardly projecting arm, a red, and a coiled -two subscribing witnesses.

JOHN EQOSBORNE.

' said lever and said bracket member having D. G. RAMSEY, an iipwardly prcjecting arm. J J S, M 

